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. 2022 Jan 16;15:45–58. doi: 10.2147/RMHP.S341085

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© 2022 Kretzler et al.

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Notes: Adapted from: Moher D, Liberati A, Tetzlaff J, Altman DG; The PRISMA Group. Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement. PLoS Med. 2009;6(7):e1000097. doi:10.1371/journal.pmed1000097.⁴³ Creative Commons. For more information, visit www.prisma-statement.org.